Piston for steam or other engines.



N0. 687,276. Patented Nbv. 26, I90I. B. SMYSER.

PISTON FOR STEAM OB'OTHER ENGINES.

(Application filed Jim. 5, 1901.)

(No Model.)

WITNESSES:

" mv NTOR ATTORNEY UNITED STATES PATENT ()FETCE.

. LOUIS B. SMYSER, OF ELIZABETH, NEW JERSEY.-

PISTON FOR STEAM OR OTHER ENGINES.

SPECIFICATTION formingpart of Letters Patent No. 687,276, dated November26, 1901. Application 51st January 5, 1901. Serial No. 42,157. (Nomodel.)

To aZZ whom it may concern:

Be it known that I, LOUIS B. SMYSER, a citizen of the UnitedStates,residingatElizabeth, in the county of Union and State of NewJersey, have invented certain new and useful Improvements in Pistons forSteam or other Engines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art'to which it appertains to make and use thesame.

My invention relates to the manufacture of pistons, plungers, and thelike and to packing for the same, adapted to steam cylinders and enginesof any kind where close fittings are required in order to obviate wasteof steam or other energy employed and of fuel.

Some of the objects of my invention are to render more simple theconstruction of pistons, plungers, and packings and to make the sameless expensive than heretofore, to improve the construction ofpistons,plnngers, and packings used in steam and other engines and at the sametime manufacture pistons, plunger-s, and packings that they may beeasily and quickly repaired when required, and to furnish pistons,plungers, and packings that are durable and those that will obviate theWaste of the motor energies employed. I attain these and other objectsby the construction illustrated in theaccompanying drawings, in which-Figure 1 is a longitudinal section through the cylinder and showing thehead of the piston partly in section, and Fig. 2 is a view showing theconstruction of the rings of the piston.

Similar characters refer to like parts throughout both views.

The letter A represents the cylinder of a steam or other engine.

The letter B refers to the piston-head, and the numeral 1 designates thebody or hub portion of the same, into which the two tenone at 12 uponthe cross-bar D of the pistonrod 0 are inserted. The numerals 2 and 3,respectively, represent the upper and lower annular flanges of thepiston-head B, the latter of which (flange 3) is provided with anannular out-away portion or recess 4 upon its outer or cylindercontact-surface. The former or upper flange 2 is recessed or cut awayfrom the body orhub portion 1 of the pistonhead B upon its outer orcylinder surface throughout its entire length for the reception of thesolid loose packing-rings a he, and the solid springs 01 and e. Theinner face of the upper flange 2 is screw-threaded, as at 5, to receivethe outer screw-threaded flange 6 of the cap 7 of the piston-head B.

The numerals 8 and 9 designate screwthreaded bolts which pass throughthe inner projecting rim 10 of the hub or bodyportion 1 of thepiston-head B and are buried into the cross-bar D of tho piston-rod C.After the screw-threaded bolts 8 and 9 are securely placed in positionthe cap 7 of the piston is then screwed in place, thereby preventing thesaid.

bolts from being dislodged during the rapid reciprocating action of thepiston. Before, however,the cap 7 of thepiston-head is secured into itsplace upon the innerscreW-threaded flange 2 of the piston-head the loosespring diagonally-cut ring a is placed in position upon the outerrecessed flanges of the piston-head. The solid loose ring (Z is thenplaced over the outer recessed flange 2 upon the spring-ring a. Thespring-ring b is next put in place over the outer recessed flange 2 uponthe lastmentioned solid loose ring (1. The spring I) is then placed uponthe ring d, and the solid loose ringeis placed upon ring b, and,last,the diagonally-cut spring-ringc is putin position over the flange 2upon the solid loose ring e and the cap 7 screwed securely in place. I maymake my piston-head of any desired nu m- -ber of solid loose andspring rings. I

The advantages of my construction of pistons, plungers, and packings areobvious and manifest. Further detailed description of the function ofthe parts is deemed unnecessary.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a piston-head, a recessed flange projecting from the same, solidand spring rings in said recess, inwardly extending hubs formed in thepiston, a journal on the pistonrod adapted to engage said hub, and ascrewcap adapted to be inserted in the head of the piston and compressthe packing upon the same.

2. In a piston-head, inwardly-extending hubs formed on the same, apiston-rod, journals formed on the piston-rod and adapted to IOO engagethe hubs, bolts passing through the hubs and adapted to secure thejournal in connection with the same, and a screw-cap upon the head ofthe piston.

3. In a piston, inwardly-extending hubs formed in the same, a piston-rodprovided with journals engaging said hub, screws securing the journalsin the hubs, a flange extending from the hub, a recess formed in saidflange, packing-rings adapted to be placed in said recess, and ascrew-cap adapted to secure the packing and screws of the hubs in theiroperative position.

at. A piston-head having hubs provided with inner projecting perforatedrims, screw bolts,an adjustable cap-plate for securing the screw-boltsin place; and means for operating the same.

5. A piston-head provided with a screwthreaded flange and hubs, the hubshaving inner and outer projecting rims, means for fastening the innerrim to the piston-pin, loose and spring rings, screw-threaded cap-plate,and means for securing'inner rim to pistonpin and rings upon saidflange.

6, A piston-head provided with flanges recessed on cylinder-surface, andhubs having inner and outer projecting rims, inner rim perforated,screw-bolts for securing the hubs to the piston-pin, solid loose andspring rings on one of said recessed flanges, screw-threaded flange,screw-threaded flanged cap-plate, and means for operating the head.

In testimony whereof I have hereunto affixed my signature in presence oftwo Witnesses.

LOUIS B. SMYSER.

\Vitnesses:

JAMES R. Roenns, M. L. SHAY.

